package Chapter07.Homework.H20212025.Work06;

public class Shapeshifting {
    public int girth(int a,int b,int c){
        System.out.print("三角形周长：");
        return a+b+c;
    }
    public double mianji(double a,double b){
        System.out.print("三角形面积：");
        return a*b/2;
    }
}
